THE weathergirl says she wants to keep the sex of the baby a surprise and revealed she can't wait to pile on the pounds.

WEATHERGIRL Kirsty McCabe is predicting a warm front heading her way as she reveals she is pregnantwith her second baby.

The Ayrshire-born presenter revealed her happy news as she looks forward to a happy new year after a tough 12 months.

Ex-Daybreak presenter Kirsty, 37, said: “It’s good news. I wanted to have another baby and I think I’m going to have a very busy 2013.”

Kirsty, who is four months’ pregnant, is married to South African-born Renato Marchio. The couple have a son, Ethan, who was born on Christmas Day 2010.

Meteorologist Kirsty said: “Ethan is a mummy’s boy but I know he’s going to be a great big brother.

“Renato and I are thrilled. We have decided not to find out the sex, I want a surprise.

“And, cliched as it sounds, as long as the baby is healthy, I will be happy. If it’s a boy, then we’ve got lots of boy toys and we know what we are dealing with. If it’s a girl, then it’s something different. We don’t mind.”

Kirsty, who went on a diet and exercise regime to lose more than two stone after having Ethan, has a small bump but looks forward to piling on the pounds.

The Edinburgh University graduate dropped from 12st and a size 16 to around 10st and a size 10.

Kirsty has been working for BBC South since leaving ITV’s Daybreak in February. She said: “I was getting up at 3.30am and heading to Southhampton to do the weather and having to stop the car to be sick. I’d forgotten how awful morning sickness can feel.”

Her parents Pat and Norman, who live in Kilmarnock, are looking forward to seeing her, Renato and grandson Ethan over the holidays.

Christmas is now a delicate balancing act, trying to celebrate Ethan’s birthday in the morning and Christmas in the afternoon. And Kirsty hopes her good news means a change of luck after a worrying few months.

Her beloved dad Pat was diagnosed with lung cancer earlier this year. After fearing he had a broken rib after a fall, doctors diagnosed a tumour.

Kirsty said: “Amazingly, after treatment it has shrunk back to nothing. They caught it so early that the outcome is amazing. But it was a horrible and worrying time and to be in London when this was going on was hard.

“That’s what happens when you get older, you worry more about your parents, especially if you live far away.”

She admitted: “It’s been a tough couple of years.”

Kirsty began her forecasting career with the BBC team in September 2003, becoming the main weather presenter for BBC News at Ten before replacing Andrea McLean as GMTV’s weather forecaster in 2008.